CPC H04W 36/0022 (2013.01) [H04M 9/082 (2013.01); H04N 1/32713 (2013.01)] | 20 Claims |
1. A radio communications device supporting 4G/5G Long Term Evolution (LTE) cellular communications, the radio communications device comprising:
a data interface configured to exchange modem control commands and audio data with an LTE cellular modem;
a telephone interface configured to provide a two-wire analog telephone interface for connection to a telephone device; and
a controller configured to:
exchange control signals via the telephone interface to manage voice call operations with the telephone device;
exchange analog voice channel signals corresponding to digitally modulated voice channel signals exchanged with the telephone device via the telephone interface;
convert signals between the analog voice channel signals and a Pulse Code Modulation (PCM) voice channel data stream;
exchange control information with the LTE cellular modem via the data interface to establish and manage an LTE cellular session; and
exchange the Pulse Code Modulation (PCM) voice channel data stream via the LTE cellular session via the LTE cellular modem.
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